imgeditor: Export more API

Signed-off-by: qianfan Zhao <qianfanguijin@163.com>

imgeditor.h

@@ -221,6 +221,11 @@ find_registed_partition(uint64_t start_addr, const char **disk_type);
 
 void free_registed_disk_partitions(void);
 
+int imgeditor_editor_detect(const char *name, int fd);
 int imgeditor_editor_main(const char *name, const char *args);
+int imgeditor_editor_unpack(const char *name, int fd, const char *out,
+			    const char *args);
+int imgeditor_editor_unpack2fd(const char *name, int fd, int fd_out,
+			       const char *args);
 
 #endif

misc.c

@@ -56,6 +56,20 @@ static void imgeditor_editor_release(struct imgeditor *editor)
 		editor->init(editor->private_data);
 }
 
+int imgeditor_editor_detect(const char *name, int fd)
+{
+	struct imgeditor *editor = gd_get_imgeditor(name);
+	int ret;
+
+	if (!editor)
+		return -1;
+
+	ret = editor->detect(editor->private_data, 0 /* force_type */, fd);
+	imgeditor_editor_release(editor);
+
+	return ret;
+}
+
 int imgeditor_editor_main(const char *name, const char *args)
 {
 	struct imgeditor *editor = imgeditor_editor_request(name);
@@ -72,3 +86,40 @@ int imgeditor_editor_main(const char *name, const char *args)
 	imgeditor_editor_release(editor);
 	return ret;
 }
+
+#define editor_argv_helper(func, fd, ...)					\
+	struct imgeditor *editor = imgeditor_editor_request(name);		\
+	char args_nonconst[8192], *argv[128] = { NULL };			\
+	off64_t cur_offset;							\
+	int argc, ret = -1;							\
+										\
+	if (!editor || !editor->func)						\
+		return ret;							\
+										\
+	cur_offset = lseek64(fd, 0, SEEK_CUR);					\
+	ret = editor->detect(editor->private_data, 1, fd);			\
+	if (ret < 0)								\
+		goto done;							\
+										\
+	snprintf(args_nonconst, sizeof(args_nonconst), "%s", args);		\
+	argc = argv_buffer_split_with_delim(args_nonconst, " \t", argv, 128);	\
+										\
+	/* restore file offset */						\
+	lseek64(fd, cur_offset, SEEK_SET);					\
+	ret = editor->func(editor->private_data, fd, ##__VA_ARGS__, argc, argv);\
+										\
+done:										\
+	imgeditor_editor_release(editor);					\
+	return ret;
+
+int imgeditor_editor_unpack(const char *name, int fd, const char *out,
+			    const char *args)
+{
+	editor_argv_helper(unpack, fd, out);
+}
+
+int imgeditor_editor_unpack2fd(const char *name, int fd, int fd_out,
+			       const char *args)
+{
+	editor_argv_helper(unpack2fd, fd, fd_out);
+}